Caching an object as a bitmap has always increased runtime performance, but…maybe you've wanted to add a background to that bitmap graphic without having to…manually add in a shape in Flash.…So on the stage here I am going to demonstrate one of the uses for caching a…bitmap with an opaque background.…So here I have a movie clip instance and the symbol is called opaque_bg.…So this is a vector graphic and I am going to cache this as a bitmap by going to…the Properties panel, and for Render I'll choose Cache as Bitmap.…

So this can improve my runtime performance, like it has for several versions of Flash.…But now I can change the background to be Transparent or Opaque.…So I'll set the background to be Opaque.…And now I can do something like apply a sunset type background or a daytime…background or something that's more gray or anything I want without having to…add another rectangle and modify its color.…So I can quickly adjust my cached bitmaps directly in the Properties panel…without having to take that extra step.…

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Author

Released

5/2/2011

In this course, author Todd Perkins demonstrates key changes in the CS5.5 release of Adobe's interactive design and animation software. This course covers workflow improvements, enhanced ActionScript features (including new code snippets for AIR and several mobile frameworks), file optimization techniques, and extended support for Android and iOS app development in AIR.